In a single slit diffraction pattern the angular width of a central maxima is `30^(@)`. When the slit is illuminated by light of

In a single slit diffraction pattern the angular width of a central maxima is `30^(@)`. When the slit is illuminated by light of wavelength `6000Å`. Then width of the slit will be approximately given as :
A. `12 xx 10^(-6)m`
B. `12 xx 10^(-7)m`
C. `12 xx 10^(-8)m`
D. `12 xx 10^(-9)m`

In a single slit diffraction pattern the angular width of a central maxima is `30^(@)`. When the slit is illuminated by light of wavelength `6000Å`. T

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